EP2341101B1 - Composition de caoutchouc pour pneu et pneu - Google Patents
Composition de caoutchouc pour pneu et pneu Download PDFInfo
- Publication number
- EP2341101B1 EP2341101B1 EP09817822.1A EP09817822A EP2341101B1 EP 2341101 B1 EP2341101 B1 EP 2341101B1 EP 09817822 A EP09817822 A EP 09817822A EP 2341101 B1 EP2341101 B1 EP 2341101B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- natural rubber
- rubber
- mass
- rubber composition
- tire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229920001971 elastomer Polymers 0.000 title claims description 104
- 239000005060 rubber Substances 0.000 title claims description 104
- 239000000203 mixture Substances 0.000 title claims description 69
- 244000043261 Hevea brasiliensis Species 0.000 claims description 132
- 229920003052 natural elastomer Polymers 0.000 claims description 132
- 229920001194 natural rubber Polymers 0.000 claims description 132
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 53
- 239000000377 silicon dioxide Substances 0.000 claims description 26
- 239000003795 chemical substances by application Substances 0.000 claims description 18
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 17
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical group CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 9
- 125000003700 epoxy group Chemical group 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 description 44
- 238000004073 vulcanization Methods 0.000 description 26
- 238000005096 rolling process Methods 0.000 description 25
- 238000002360 preparation method Methods 0.000 description 24
- 239000006087 Silane Coupling Agent Substances 0.000 description 23
- 239000006229 carbon black Substances 0.000 description 22
- 239000000446 fuel Substances 0.000 description 22
- 238000000034 method Methods 0.000 description 22
- 230000000052 comparative effect Effects 0.000 description 21
- 238000011156 evaluation Methods 0.000 description 17
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 14
- 239000005062 Polybutadiene Substances 0.000 description 13
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 13
- 229920002857 polybutadiene Polymers 0.000 description 13
- 229910052717 sulfur Inorganic materials 0.000 description 12
- 239000011593 sulfur Substances 0.000 description 12
- 239000003208 petroleum Substances 0.000 description 11
- 238000006735 epoxidation reaction Methods 0.000 description 10
- 230000033444 hydroxylation Effects 0.000 description 10
- 238000005805 hydroxylation reaction Methods 0.000 description 10
- 229920003048 styrene butadiene rubber Polymers 0.000 description 10
- 239000002174 Styrene-butadiene Substances 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 235000021355 Stearic acid Nutrition 0.000 description 7
- 239000003377 acid catalyst Substances 0.000 description 7
- 239000000945 filler Substances 0.000 description 7
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 7
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 7
- 239000008117 stearic acid Substances 0.000 description 7
- 239000011787 zinc oxide Substances 0.000 description 7
- 230000006872 improvement Effects 0.000 description 6
- 230000003993 interaction Effects 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007970 homogeneous dispersion Substances 0.000 description 4
- QAZLUNIWYYOJPC-UHFFFAOYSA-M sulfenamide Chemical compound [Cl-].COC1=C(C)C=[N+]2C3=NC4=CC=C(OC)C=C4N3SCC2=C1C QAZLUNIWYYOJPC-UHFFFAOYSA-M 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 238000005481 NMR spectroscopy Methods 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 229920005549 butyl rubber Polymers 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 150000001451 organic peroxides Chemical class 0.000 description 3
- 150000002978 peroxides Chemical class 0.000 description 3
- 239000004636 vulcanized rubber Substances 0.000 description 3
- 238000004483 ATR-FTIR spectroscopy Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N Methyl ethyl ketone Natural products CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- HEDRZPFGACZZDS-MICDWDOJSA-N Trichloro(2H)methane Chemical compound [2H]C(Cl)(Cl)Cl HEDRZPFGACZZDS-MICDWDOJSA-N 0.000 description 2
- 150000001412 amines Chemical group 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- -1 dicumyl peroxides Chemical class 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- IUJLOAKJZQBENM-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-2-methylpropan-2-amine Chemical compound C1=CC=C2SC(SNC(C)(C)C)=NC2=C1 IUJLOAKJZQBENM-UHFFFAOYSA-N 0.000 description 2
- DEQZTKGFXNUBJL-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)cyclohexanamine Chemical compound C1CCCCC1NSC1=NC2=CC=CC=C2S1 DEQZTKGFXNUBJL-UHFFFAOYSA-N 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 2
- FBBATURSCRIBHN-UHFFFAOYSA-N triethoxy-[3-(3-triethoxysilylpropyldisulfanyl)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCSSCCC[Si](OCC)(OCC)OCC FBBATURSCRIBHN-UHFFFAOYSA-N 0.000 description 2
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 description 1
- RIPYNJLMMFGZSX-UHFFFAOYSA-N (5-benzoylperoxy-2,5-dimethylhexan-2-yl) benzenecarboperoxoate Chemical compound C=1C=CC=CC=1C(=O)OOC(C)(C)CCC(C)(C)OOC(=O)C1=CC=CC=C1 RIPYNJLMMFGZSX-UHFFFAOYSA-N 0.000 description 1
- XVYUHVUUDRFUNE-UHFFFAOYSA-N 1,3-bis(3-tert-butylperoxypropyl)benzene Chemical compound CC(C)(C)OOCCCC1=CC=CC(CCCOOC(C)(C)C)=C1 XVYUHVUUDRFUNE-UHFFFAOYSA-N 0.000 description 1
- UJPKMTDFFUTLGM-UHFFFAOYSA-N 1-aminoethanol Chemical compound CC(N)O UJPKMTDFFUTLGM-UHFFFAOYSA-N 0.000 description 1
- ODBCKCWTWALFKM-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhex-3-yne Chemical compound CC(C)(C)OOC(C)(C)C#CC(C)(C)OOC(C)(C)C ODBCKCWTWALFKM-UHFFFAOYSA-N 0.000 description 1
- DMWVYCCGCQPJEA-UHFFFAOYSA-N 2,5-bis(tert-butylperoxy)-2,5-dimethylhexane Chemical compound CC(C)(C)OOC(C)(C)CCC(C)(C)OOC(C)(C)C DMWVYCCGCQPJEA-UHFFFAOYSA-N 0.000 description 1
- IKBFHCBHLOZDKH-UHFFFAOYSA-N 2-chloroethyl(triethoxy)silane Chemical compound CCO[Si](CCCl)(OCC)OCC IKBFHCBHLOZDKH-UHFFFAOYSA-N 0.000 description 1
- CASYTJWXPQRCFF-UHFFFAOYSA-N 2-chloroethyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)CCCl CASYTJWXPQRCFF-UHFFFAOYSA-N 0.000 description 1
- YRVRZDIWEXCJSX-UHFFFAOYSA-N 2-methyl-3-(3-triethoxysilylpropyl)thiirane-2-carboxylic acid Chemical compound CCO[Si](OCC)(OCC)CCCC1SC1(C)C(O)=O YRVRZDIWEXCJSX-UHFFFAOYSA-N 0.000 description 1
- HHZDRADWWVVISO-UHFFFAOYSA-N 2-methyl-3-(3-trimethoxysilylpropyl)thiirane-2-carboxylic acid Chemical compound CO[Si](OC)(OC)CCCC1SC1(C)C(O)=O HHZDRADWWVVISO-UHFFFAOYSA-N 0.000 description 1
- DVNPFNZTPMWRAX-UHFFFAOYSA-N 2-triethoxysilylethanethiol Chemical compound CCO[Si](CCS)(OCC)OCC DVNPFNZTPMWRAX-UHFFFAOYSA-N 0.000 description 1
- LOSLJXKHQKRRFN-UHFFFAOYSA-N 2-trimethoxysilylethanethiol Chemical compound CO[Si](OC)(OC)CCS LOSLJXKHQKRRFN-UHFFFAOYSA-N 0.000 description 1
- KQVVPOMBWBKNRS-UHFFFAOYSA-N 3-(1,3-benzothiazol-2-yl)propyl-triethoxysilane Chemical compound C1=CC=C2SC(CCC[Si](OCC)(OCC)OCC)=NC2=C1 KQVVPOMBWBKNRS-UHFFFAOYSA-N 0.000 description 1
- HFGLXKZGFFRQAR-UHFFFAOYSA-N 3-(1,3-benzothiazol-2-yltetrasulfanyl)propyl-trimethoxysilane Chemical compound C1=CC=C2SC(SSSSCCC[Si](OC)(OC)OC)=NC2=C1 HFGLXKZGFFRQAR-UHFFFAOYSA-N 0.000 description 1
- LJGHYPLBDBRCRZ-UHFFFAOYSA-N 3-(3-aminophenyl)sulfonylaniline Chemical compound NC1=CC=CC(S(=O)(=O)C=2C=C(N)C=CC=2)=C1 LJGHYPLBDBRCRZ-UHFFFAOYSA-N 0.000 description 1
- KSCAZPYHLGGNPZ-UHFFFAOYSA-N 3-chloropropyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)CCCCl KSCAZPYHLGGNPZ-UHFFFAOYSA-N 0.000 description 1
- OXYZDRAJMHGSMW-UHFFFAOYSA-N 3-chloropropyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)CCCCl OXYZDRAJMHGSMW-UHFFFAOYSA-N 0.000 description 1
- DCQBZYNUSLHVJC-UHFFFAOYSA-N 3-triethoxysilylpropane-1-thiol Chemical compound CCO[Si](OCC)(OCC)CCCS DCQBZYNUSLHVJC-UHFFFAOYSA-N 0.000 description 1
- SJECZPVISLOESU-UHFFFAOYSA-N 3-trimethoxysilylpropan-1-amine Chemical compound CO[Si](OC)(OC)CCCN SJECZPVISLOESU-UHFFFAOYSA-N 0.000 description 1
- UUEWCQRISZBELL-UHFFFAOYSA-N 3-trimethoxysilylpropane-1-thiol Chemical compound CO[Si](OC)(OC)CCCS UUEWCQRISZBELL-UHFFFAOYSA-N 0.000 description 1
- MHKLKWCYGIBEQF-UHFFFAOYSA-N 4-(1,3-benzothiazol-2-ylsulfanyl)morpholine Chemical compound C1COCCN1SC1=NC2=CC=CC=C2S1 MHKLKWCYGIBEQF-UHFFFAOYSA-N 0.000 description 1
- HLBZWYXLQJQBKU-UHFFFAOYSA-N 4-(morpholin-4-yldisulfanyl)morpholine Chemical compound C1COCCN1SSN1CCOCC1 HLBZWYXLQJQBKU-UHFFFAOYSA-N 0.000 description 1
- 238000004438 BET method Methods 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical class C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- FSPIGXNLDXWYKZ-UHFFFAOYSA-N CCO[Si](CCC[S+]=C(N(C)C)SSSSC(N(C)C)=[S+]CCC[Si](OCC)(OCC)OCC)(OCC)OCC Chemical compound CCO[Si](CCC[S+]=C(N(C)C)SSSSC(N(C)C)=[S+]CCC[Si](OCC)(OCC)OCC)(OCC)OCC FSPIGXNLDXWYKZ-UHFFFAOYSA-N 0.000 description 1
- SXLPVOKGQWNWFD-UHFFFAOYSA-N CCO[Si](CC[S+]=C(N(C)C)SSSSC(N(C)C)=[S+]CC[Si](OCC)(OCC)OCC)(OCC)OCC Chemical compound CCO[Si](CC[S+]=C(N(C)C)SSSSC(N(C)C)=[S+]CC[Si](OCC)(OCC)OCC)(OCC)OCC SXLPVOKGQWNWFD-UHFFFAOYSA-N 0.000 description 1
- SKFGZHGVWONCTD-UHFFFAOYSA-N CN(C)C(SSSSC(N(C)C)=[S+]CCC[Si](OC)(OC)OC)=[S+]CCC[Si](OC)(OC)OC Chemical compound CN(C)C(SSSSC(N(C)C)=[S+]CCC[Si](OC)(OC)OC)=[S+]CCC[Si](OC)(OC)OC SKFGZHGVWONCTD-UHFFFAOYSA-N 0.000 description 1
- NMSINRARNNWSHY-UHFFFAOYSA-N CN(C)C(SSSSC(N(C)C)=[S+]CC[Si](OC)(OC)OC)=[S+]CC[Si](OC)(OC)OC Chemical compound CN(C)C(SSSSC(N(C)C)=[S+]CC[Si](OC)(OC)OC)=[S+]CC[Si](OC)(OC)OC NMSINRARNNWSHY-UHFFFAOYSA-N 0.000 description 1
- 239000005046 Chlorosilane Substances 0.000 description 1
- 239000006237 Intermediate SAF Substances 0.000 description 1
- 239000002841 Lewis acid Substances 0.000 description 1
- 241000254043 Melolonthinae Species 0.000 description 1
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- FZWLAAWBMGSTSO-UHFFFAOYSA-N Thiazole Chemical compound C1=CSC=N1 FZWLAAWBMGSTSO-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- XENVCRGQTABGKY-ZHACJKMWSA-N chlorohydrin Chemical compound CC#CC#CC#CC#C\C=C\C(Cl)CO XENVCRGQTABGKY-ZHACJKMWSA-N 0.000 description 1
- KOPOQZFJUQMUML-UHFFFAOYSA-N chlorosilane Chemical compound Cl[SiH3] KOPOQZFJUQMUML-UHFFFAOYSA-N 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- MRIZMKJLUDDMHF-UHFFFAOYSA-N cumene;hydrogen peroxide Chemical class OO.CC(C)C1=CC=CC=C1 MRIZMKJLUDDMHF-UHFFFAOYSA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical class CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 description 1
- OTARVPUIYXHRRB-UHFFFAOYSA-N diethoxy-methyl-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](C)(OCC)CCCOCC1CO1 OTARVPUIYXHRRB-UHFFFAOYSA-N 0.000 description 1
- WHGNXNCOTZPEEK-UHFFFAOYSA-N dimethoxy-methyl-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](C)(OC)CCCOCC1CO1 WHGNXNCOTZPEEK-UHFFFAOYSA-N 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229920005555 halobutyl Polymers 0.000 description 1
- MTNDZQHUAFNZQY-UHFFFAOYSA-N imidazoline Chemical compound C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 description 1
- 150000007517 lewis acids Chemical class 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- INJVFBCDVXYHGQ-UHFFFAOYSA-N n'-(3-triethoxysilylpropyl)ethane-1,2-diamine Chemical compound CCO[Si](OCC)(OCC)CCCNCCN INJVFBCDVXYHGQ-UHFFFAOYSA-N 0.000 description 1
- PHQOGHDTIVQXHL-UHFFFAOYSA-N n'-(3-trimethoxysilylpropyl)ethane-1,2-diamine Chemical compound CO[Si](OC)(OC)CCCNCCN PHQOGHDTIVQXHL-UHFFFAOYSA-N 0.000 description 1
- ILSQBBRAYMWZLQ-UHFFFAOYSA-N n-(1,3-benzothiazol-2-ylsulfanyl)-n-propan-2-ylpropan-2-amine Chemical compound C1=CC=C2SC(SN(C(C)C)C(C)C)=NC2=C1 ILSQBBRAYMWZLQ-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- CUXVCONCZJJRCS-UHFFFAOYSA-N nitrosilane Chemical compound [O-][N+]([SiH3])=O CUXVCONCZJJRCS-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- NWLSIXHRLQYIAE-UHFFFAOYSA-N oxiran-2-ylmethoxysilicon Chemical compound [Si]OCC1CO1 NWLSIXHRLQYIAE-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007142 ring opening reaction Methods 0.000 description 1
- FZHAPNGMFPVSLP-UHFFFAOYSA-N silanamine Chemical compound [SiH3]N FZHAPNGMFPVSLP-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- TXDNPSYEJHXKMK-UHFFFAOYSA-N sulfanylsilane Chemical compound S[SiH3] TXDNPSYEJHXKMK-UHFFFAOYSA-N 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- KUAZQDVKQLNFPE-UHFFFAOYSA-N thiram Chemical compound CN(C)C(=S)SSC(=S)N(C)C KUAZQDVKQLNFPE-UHFFFAOYSA-N 0.000 description 1
- 229960002447 thiram Drugs 0.000 description 1
- FPBXRRDHCADTAL-UHFFFAOYSA-N triethoxy(3-nitropropyl)silane Chemical compound CCO[Si](OCC)(OCC)CCC[N+]([O-])=O FPBXRRDHCADTAL-UHFFFAOYSA-N 0.000 description 1
- FJXRKYLOOJTENP-UHFFFAOYSA-N triethoxy-[2-(2-triethoxysilylethyldisulfanyl)ethyl]silane Chemical compound CCO[Si](OCC)(OCC)CCSSCC[Si](OCC)(OCC)OCC FJXRKYLOOJTENP-UHFFFAOYSA-N 0.000 description 1
- ASAOXGWSIOQTDI-UHFFFAOYSA-N triethoxy-[2-(2-triethoxysilylethyltetrasulfanyl)ethyl]silane Chemical compound CCO[Si](OCC)(OCC)CCSSSSCC[Si](OCC)(OCC)OCC ASAOXGWSIOQTDI-UHFFFAOYSA-N 0.000 description 1
- URIYERBJSDIUTC-UHFFFAOYSA-N triethoxy-[2-(2-triethoxysilylethyltrisulfanyl)ethyl]silane Chemical compound CCO[Si](OCC)(OCC)CCSSSCC[Si](OCC)(OCC)OCC URIYERBJSDIUTC-UHFFFAOYSA-N 0.000 description 1
- VTHOKNTVYKTUPI-UHFFFAOYSA-N triethoxy-[3-(3-triethoxysilylpropyltetrasulfanyl)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCSSSSCCC[Si](OCC)(OCC)OCC VTHOKNTVYKTUPI-UHFFFAOYSA-N 0.000 description 1
- KLFNHRIZTXWZHT-UHFFFAOYSA-N triethoxy-[3-(3-triethoxysilylpropyltrisulfanyl)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCSSSCCC[Si](OCC)(OCC)OCC KLFNHRIZTXWZHT-UHFFFAOYSA-N 0.000 description 1
- JXUKBNICSRJFAP-UHFFFAOYSA-N triethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCOCC1CO1 JXUKBNICSRJFAP-UHFFFAOYSA-N 0.000 description 1
- PTRSAJDNBVXVMV-UHFFFAOYSA-N triethoxy-[4-(4-triethoxysilylbutyldisulfanyl)butyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCCSSCCCC[Si](OCC)(OCC)OCC PTRSAJDNBVXVMV-UHFFFAOYSA-N 0.000 description 1
- NOPBHRUFGGDSAD-UHFFFAOYSA-N triethoxy-[4-(4-triethoxysilylbutyltetrasulfanyl)butyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCCSSSSCCCC[Si](OCC)(OCC)OCC NOPBHRUFGGDSAD-UHFFFAOYSA-N 0.000 description 1
- KZAORBYGVQCRQZ-UHFFFAOYSA-N triethoxy-[4-(4-triethoxysilylbutyltrisulfanyl)butyl]silane Chemical compound CCO[Si](OCC)(OCC)CCCCSSSCCCC[Si](OCC)(OCC)OCC KZAORBYGVQCRQZ-UHFFFAOYSA-N 0.000 description 1
- QPPXVBLDIDEHBA-UHFFFAOYSA-N trimethoxy(3-nitropropyl)silane Chemical compound CO[Si](OC)(OC)CCC[N+]([O-])=O QPPXVBLDIDEHBA-UHFFFAOYSA-N 0.000 description 1
- JQBSHJQOBJRYIX-UHFFFAOYSA-N trimethoxy-[2-(2-trimethoxysilylethyldisulfanyl)ethyl]silane Chemical compound CO[Si](OC)(OC)CCSSCC[Si](OC)(OC)OC JQBSHJQOBJRYIX-UHFFFAOYSA-N 0.000 description 1
- JSXKIRYGYMKWSK-UHFFFAOYSA-N trimethoxy-[2-(2-trimethoxysilylethyltetrasulfanyl)ethyl]silane Chemical compound CO[Si](OC)(OC)CCSSSSCC[Si](OC)(OC)OC JSXKIRYGYMKWSK-UHFFFAOYSA-N 0.000 description 1
- XHKVDRDQEVZMGO-UHFFFAOYSA-N trimethoxy-[2-(2-trimethoxysilylethyltrisulfanyl)ethyl]silane Chemical compound CO[Si](OC)(OC)CCSSSCC[Si](OC)(OC)OC XHKVDRDQEVZMGO-UHFFFAOYSA-N 0.000 description 1
- NQRACKNXKKOCJY-UHFFFAOYSA-N trimethoxy-[3-(3-trimethoxysilylpropyldisulfanyl)propyl]silane Chemical compound CO[Si](OC)(OC)CCCSSCCC[Si](OC)(OC)OC NQRACKNXKKOCJY-UHFFFAOYSA-N 0.000 description 1
- JTTSZDBCLAKKAY-UHFFFAOYSA-N trimethoxy-[3-(3-trimethoxysilylpropyltetrasulfanyl)propyl]silane Chemical compound CO[Si](OC)(OC)CCCSSSSCCC[Si](OC)(OC)OC JTTSZDBCLAKKAY-UHFFFAOYSA-N 0.000 description 1
- KOFGNZOFJYBHIN-UHFFFAOYSA-N trimethoxy-[3-(3-trimethoxysilylpropyltrisulfanyl)propyl]silane Chemical compound CO[Si](OC)(OC)CCCSSSCCC[Si](OC)(OC)OC KOFGNZOFJYBHIN-UHFFFAOYSA-N 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- BNBXBRPOAJZBNB-UHFFFAOYSA-N trimethoxy-[4-(4-trimethoxysilylbutyldisulfanyl)butyl]silane Chemical compound CO[Si](OC)(OC)CCCCSSCCCC[Si](OC)(OC)OC BNBXBRPOAJZBNB-UHFFFAOYSA-N 0.000 description 1
- WUMASLCNJBRHDA-UHFFFAOYSA-N trimethoxy-[4-(4-trimethoxysilylbutyltetrasulfanyl)butyl]silane Chemical compound CO[Si](OC)(OC)CCCCSSSSCCCC[Si](OC)(OC)OC WUMASLCNJBRHDA-UHFFFAOYSA-N 0.000 description 1
- GSZUEPNJCPXEGU-UHFFFAOYSA-N trimethoxy-[4-(4-trimethoxysilylbutyltrisulfanyl)butyl]silane Chemical compound CO[Si](OC)(OC)CCCCSSSCCCC[Si](OC)(OC)OC GSZUEPNJCPXEGU-UHFFFAOYSA-N 0.000 description 1
- UKRDPEFKFJNXQM-UHFFFAOYSA-N vinylsilane Chemical compound [SiH3]C=C UKRDPEFKFJNXQM-UHFFFAOYSA-N 0.000 description 1
- 239000001993 wax Substances 0.000 description 1
- 239000012991 xanthate Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C1/00—Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
- B60C1/0016—Compositions of the tread
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C19/00—Chemical modification of rubber
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08C—TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS
- C08C19/00—Chemical modification of rubber
- C08C19/04—Oxidation
- C08C19/06—Epoxidation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L15/00—Compositions of rubber derivatives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/548—Silicon-containing compounds containing sulfur
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Definitions
- the present invention relates to a tire produced using a rubber composition for a tire.
- raw materials derived from petroleum resources such as synthetic rubbers, including butadiene rubber (BR), or carbon black have been used to produce tire rubbers in a highly dependent manner.
- environmental issues are concerned and thus the regulations on the carbon dioxide emissions are tightened.
- the petroleum resources are finite, which puts a limit on the use of the raw materials derived from petroleum resources. Accordingly, it is desirable to develop a rubber composition for a tire, which contains raw materials derived from non-petroleum resources as an alternative to a part or the whole of the above raw materials derived from petroleum resources, has various excellent properties, and is applicable to components such as a tread.
- Patent Document 1 discloses a rubber composition for a tread, which contains epoxidized natural rubber and silica for improving grip performance, fuel economy, and abrasion resistance in a balanced manner. Further, a rubber composition for a tire tread is disclosed which contains epoxidized natural rubber, carbon black, and optionally silica and the like, which lead to improvement of properties such as abrasion resistance and grip performance (see Patent Documents 2 and 3).
- EP 0 588 287 A2 discloses a rubber composition
- a functional group-containing polymer having a molecular weight of 1000 to 100, 000, wherein the polymer comprises 0 to 60% by mole of a structural unit, such as styrene, 40 to 100% by mole of a structural unit, such as isoprene or butadiene, plus a structural unit, such as isoprene or butadiene, and on one end of the molecule in an average of at least 0.6 groups per molecule of a functional group, such a hydroxyl group.
- a functional group-containing polymer having a molecular weight of 1000 to 100, 000, wherein the polymer comprises 0 to 60% by mole of a structural unit, such as styrene, 40 to 100% by mole of a structural unit, such as isoprene or butadiene, plus a structural unit, such as isoprene or butadiene, and on one end of the molecule in an average of at
- JP 2005-041,960 A relates to a rubber composition for a tire tread comprising 100 parts by weight of a rubber component containing 5 to 100% by weight of modified epoxidized natural rubber, which is obtained by reacting epoxidized natural rubber with a Lewis acid, such as phenol or acidic anhydride, in order to carry out a ring-opening of the epoxy group.
- a Lewis acid such as phenol or acidic anhydride
- An object of the present invention is to provide a rubber composition for a tire and a tire using the same which solve the above problems and improve fuel economy (rolling resistance) and abrasion resistance in a balanced manner.
- Another object of the present invention is to provide a rubber composition for a tire and a tire using the same which improve fuel economy, abrasion resistance, and grip performance in a balanced manner.
- the present invention relates to a tire produced using a rubber composition for a tire, which includes a vulcanizing agent and a rubber component containing modified natural rubber that has a hydroxyl group directly bonded to a main chain of natural rubber, wherein the modified natural rubber has at least one of constitutional units represented by the following formulae (1), (2), (3), and (4) : wherein each of x and y is an integer of 1 or greater and wherein the content of hydroxyl groups in the modified natural rubber is 1% to 20% by mole based on isoprene units.
- the modified natural rubber preferably has an epoxy group.
- the modified natural rubber preferably has a constitutional unit represented by the following formula (5) : wherein x is an integer of 1 or greater.
- the content of hydroxyl groups in the modified natural rubber is 1% to 20% by mole based on isoprene units.
- the rubber composition preferably contains 20% by mass or more of the modified natural rubber per 100% by mass of the rubber component.
- the rubber composition preferably further includes 10 to 100 parts by mass of silica per 100 parts by mass of the rubber component.
- the present invention also relates to a tire produced using the above rubber composition.
- the present invention can provide a rubber composition and a tire which can improve fuel economy (rolling resistance) and abrasion resistance in a balanced manner because they are produced using a vulcanizing agent and modified natural rubber with a hydroxyl group directly bonded to the main chain of natural rubber. Further, the rubber composition and tire of the present invention can improve grip performance as well as fuel economy and abrasion resistance in a balanced manner.
- the rubber composition for a tire in the present invention contains a vulcanizing agent, and modified natural rubber with a hydroxyl group directly bonded to the main chain of natural rubber (hydroxylated natural rubber).
- the rubber composition contains natural rubber the main chain of which is directly bonded with a hydroxyl group, as a rubber component. This leads to balanced improvement of the fuel economy (rolling resistance) and abrasion resistance of a vulcanized rubber composition, and to sufficient achievement of the both properties.
- the rubber composition can improve fuel economy, abrasion resistance, and grip performance in a balanced manner, and achieve all these properties sufficiently.
- the present invention exerts an effect of increasing the interaction between natural rubber and a filler such as silica (increasing the affinity between natural rubber and a filler) by directly bonding a hydroxyl group to the main chain of the natural rubber.
- a filler such as silica
- This promotes homogeneous dispersion of the filler and improves fuel economy and abrasion resistance in a balanced manner.
- epoxidation of a natural rubber which contains a hydroxyl group directly bonded to the main chain of natural rubber leads to a further increase in the effects of the above interaction and homogeneous dispersion. This makes it possible for the rubber composition to achieve grip performance as well as fuel economy and abrasion resistance at even higher levels in a balanced manner.
- the content of hydroxyl groups in the modified natural rubber is 1% by mole or more, more preferably 2% by mole or more, and still more preferably 3% by mole or more. Also, the hydroxylation rate is 20% by mole or less, more preferably 15% by mole or less, and still more preferably 8% by mole or less. A rate of less than 1% by mole tends not to increase the interaction sufficiently. On the other hand, a rate of more than 20% by mole tends to make a vulcanized rubber too hard and decrease abrasion resistance.
- the epoxidation rate of the modified natural rubber is preferably 5% by mole or more, more preferably 10% by mole or more, and still more preferably 15% by mole or more. Also, the above epoxidation rate is preferably 40% by mole or less, more preferably 35% by mole or less, and still more preferably 30% by mole or less. A rate of less than 5% by mole tends not to improve grip performance sufficiently. On the other hand, a rate of more than 40% by mole tends to make a vulcanized rubber too hard and decrease fuel economy.
- hydroxylation rate and epoxidation rate can be determined by methods described in Examples below.
- the modified natural rubber has at least one constitutional unit selected from the group consisting of the above formulae (1), (2), (3), and (4). This makes it possible to increase the interaction between a filler and natural rubber, promote homogeneous dispersion of the filler, and improve fuel economy and abrasion resistance in a balanced manner. Further, the modified natural rubber preferably has a constitutional unit represented by the above formula (5). This makes it possible to further improve the effects of the above interaction and homogeneous dispersion, and improve fuel economy, abrasion resistance, and grip performance in a balanced manner.
- the modified natural rubber according to the present invention may not be modified with amines (for example, the rubber may not contain amines bonded to the main chain thereof) .
- the rubber composition may contain one kind of modified natural rubber, or contain two or more kinds of modified natural rubber.
- modified natural rubber (hydroxylated natural rubber, or hydroxylated epoxidized natural rubber) is not particularly limited, and modified natural rubber can be produced for example by introducing a hydroxyl group into the main chain of natural rubber or of epoxidized natural rubber in accordance with a known method.
- modified natural rubber can be produced by dissolving natural rubber or epoxidized natural rubber in an organic solvent, adding predetermined amounts of an acid catalyst and water to the solution, and causing a reaction while keeping the reaction solution between a room temperature and a reflux temperature of the reaction solution.
- the reaction time is mainly affected by the addition amounts of the acid catalyst and water, and the reaction temperature.
- controlling the addition amounts and the reaction temperature makes it possible to control the hydroxyl-group modification rate of the unsaturated bonds of natural rubber or of epoxidized natural rubber.
- Examples of the natural rubber include rubbers generally used in rubber industries, such as RSS#3 and TSR20.
- the epoxidized natural rubber may be commercially available ENR or may be a rubber produced by epoxidizing natural rubber (NR).
- the method of epoxidizing NR is not particularly limited, and a method such as a chlorohydrin method, a direct oxidation method, a hydrogen peroxide method, an alkylhydroperoxide method, or a peroxide method may be employed (see JP H04-26617 B , JP H02-110182 A , UK Patent GB 2113692 , etc.).
- Examples of the peroxide method include a method of causing a reaction between NR and an organic peroxide such as a peracetic acid or a performic acid.
- the rubber component includes not only modified natural rubber but also rubber such as natural rubber (NR), epoxidized natural rubber (ENR), styrene butadiene rubber (SBR), butadiene rubber (BR), butyl rubber (IIR), halogenated butyl rubber (X-IIR), or a halogenated product of a copolymer of an isomonoolefin and a p-alkylstyrene.
- BR and SBR are preferable which can improve fuel economy, abrasion resistance, and grip performance in a balanced manner.
- the rubber component preferably includes rubber derived from natural rubber, that is, non-petroleum-derived rubber such as NR or ENR. This is because the rubber can improve the above properties, leads to an increase in the non-petroleum resource content to make the rubber composition environmentally friendly, and thus can help preparations for a future decrease in the amount of oil supply.
- the rubber composition preferably contains 20% by mass or more, more preferably 30% by mass or more of the modified natural rubber per 100% by mass of the rubber component.
- An amount of the modified natural rubber of less than 20% by mass tends not to sufficiently improve fuel economy and abrasion resistance in a balanced manner.
- the rubber composition may contain 100% by mass of the modified natural rubber.
- the BR content is preferably 10% by mass or more, and more preferably 15% by mass or more in 100% by mass of the rubber component. Also, the BR content is preferably 70% by mass or less, and more preferably 60% by mass or less.
- the SBR content is preferably 80% by mass or less, and more preferably 70% by mass or less in 100% by mass of the rubber component.
- An SBR content of more than 80% by mass tends not to sufficiently improve fuel economy and abrasion resistance in a balanced manner.
- the NR content is preferably 10% by mass or more, and more preferably 15% by mass or more in 100% by mass of the rubber component. Also, the NR content is preferably 80% by mass or less, and more preferably 70% by mass or less.
- the ENR content is preferably 10% by mass or more, and more preferably 15% by mass or more in 100% by mass of the rubber component. Also, the ENR content is preferably 80% by mass or less, and more preferably 70% by mass or less.
- the rubber composition of the present invention contains a vulcanizing agent.
- the covalent crosslinking caused by the vulcanizing agent accounts for a large proportion of the crosslinking of the rubber composition.
- Examples of the vulcanizing agent include organic peroxides and sulfur vulcanizing agents.
- Examples of the organic peroxides include benzoyl peroxides, dicumyl peroxides, di-t-butyl peroxides, t-butyl cumyl peroxides, methyl ethyl ketone peroxides, cumene hydroperoxides, 2,5-dimethyl-2,5-di(t-butylperoxy)hexane, 2,5-dimethyl-2,5-di(benzoylperoxy)hexane, 2,5-dimethyl-2,5-di(t-butylperoxy)hexyne-3, and 1,3-bis(t-butylperoxypropyl)benzene.
- examples of the sulfur vulcanizing agents include sulfur and morpholine disulfide. Among these, sulfur vulcanizing agents such as sulfur are preferable in terms of the blending effects and strength properties.
- the rubber composition preferably contains 1 part by mass or more, more preferably 1.5 parts by mass or more, and still more preferably 2 parts by mass or more of the vulcanizing agent per 100 parts by mass of the rubber component. Also, the rubber composition preferably contains 10 parts by mass or less, more preferably 8 parts by mass or less, and still more preferably 5 parts by mass or less of the vulcanizing agent. A vulcanizing agent content of less than 1 part by mass tends not to sufficiently vulcanize the rubber composition. On the other hand, a vulcanizing agent content of more than 10 parts by mass tends to excessively vulcanize the rubber composition.
- the rubber composition may contain a vulcanization accelerator as well as the vulcanizing agent.
- vulcanization accelerator examples include sulfenamide vulcanization accelerators, thiazol vulcanization accelerators, thiuram vulcanization accelerators, thiourea vulcanization accelerators, guanidine vulcanization accelerators, dithiocarbamic acid vulcanization accelerators, aldehyde-amine vulcanization accelerators, aldehyde-ammonia vulcanization accelerators, imidazoline vulcanization accelerators, and xanthate vulcanization accelerators.
- sulfenamide vulcanization accelerators are preferable which have excellent crosslinking reactivity.
- sulfenamide vulcanization accelerators include sulfenamide compounds such as CBS (N-cyclohexyl-2-benzothiazyl sulfenamide), TBBS (N-t-butyl-2-benzothiazyl sulfenamide), N,N-dicyclohexyl-2-benzothiazyl sulfenamide, N-oxydiethylene-2-benzothiazyl sulfenamide, and N,N-diisopropyl-2-benzothiazole sulfenamide.
- CBS N-cyclohexyl-2-benzothiazyl sulfenamide
- TBBS N-t-butyl-2-benzothiazyl sulfenamide
- N,N-dicyclohexyl-2-benzothiazyl sulfenamide N-oxydiethylene-2-benzothiazyl sulfenamide
- the rubber composition preferably contains 0.5 parts by mass or more, more preferably 1 part by mass or more, and still more preferably 1.5 parts by mass or more of the vulcanization accelerator per 100 parts by mass of the rubber component. Also, the rubber composition preferably contains 6 parts by mass or less, more preferably 4 parts by mass or less, and still more preferably 2 parts by mass or less of the vulcanization accelerator.
- a vulcanization accelerator content of less than 0.5 parts by mass tends not to sufficiently vulcanize the rubber composition, leading to failure to provide required rubber properties.
- a vulcanization accelerator content of more than 6 parts by mass tends to excessively vulcanize the rubber composition.
- the rubber composition of the present invention may contain a filler.
- the rubber composition can suitably contain silica, which is a non-petroleum-derived filler.
- silica include, but are not limited to, silica produced by a wet process and silica produced by a dry process.
- a BET specific surface area (BET) of the silica is preferably 30 m 2 /g or larger, and more preferably 50 m 2 /g or larger.
- a BET specific surface area of smaller than 30 m 2 /g tends to decrease abrasion resistance and grip performance.
- the BET of the silica is preferably 250 m 2 /g or smaller, and more preferably 200 m 2 /g or smaller.
- a BET specific surface area of larger than 250 m 2 /g may decrease processability and decrease dispersibility of silica, thereby tending not to improve the above properties in a balanced manner.
- the BET specific surface area is a value determined by the BET method in accordance with ASTM D3037-81.
- the rubber composition preferably contains 10 parts by mass or more, more preferably 20 parts by mass or more of the silica per 100 parts by mass of the rubber component.
- a silica content of less than 10 parts by mass may excessively decrease strength and rigidity, and thus require the rubber composition to contain a large amount of a petroleum-derived reinforcing agent such as carbon black; this tends to increase the content of petroleum-derived ingredients.
- the rubber composition preferably contains 100 parts by mass or less, and more preferably 80 parts by mass or less of the silica. A silica content of more than 100 parts by mass tends to decrease processability.
- the rubber composition preferably contains a silane coupling agent as well as silica.
- the silane coupling agent is not particularly limited, and any silane coupling agents conventionally used with silica in the tire industries can be used as the silane coupling agent.
- examples thereof include sulfide silane coupling agents such as bis(3-triethoxysilylpropyl)tetrasulfide, bis(2-triethoxysilylethyl)tetrasulfide, bis(4-triethoxysilylbutyl)tetrasulfide, bis(3-trimethoxysilylpropyl)tetrasulfide, bis(2-trimethoxysilylethyl)tetrasulfide, bis(4-trimethoxysilylbutyl)tetrasulfide, bis(3-triethoxysilylpropyl)trisulfide, bis(2-triethoxysilylethyl)trisulfide, bis(4-triethoxysilylbutyl)trisulfide
- the silane coupling agent content is preferably 0.5 parts by mass or more, and more preferably 1 part by mass or more per 100 parts by mass of the silica.
- a silane coupling agent content of less than 0.5 parts by mass may result in insufficient reaction with the silica, which tends not to enhance reinforcement.
- the silane coupling agent content is preferably 15 parts by mass or less, and more preferably 13 parts by mass or less. If the silane coupling agent content is more than 15 parts by mass, further addition of a silane coupling agent may not result in further improvement of rubber strength and abrasion resistance, and this tends to increase cost.
- the rubber composition may contain carbon black.
- a rubber composition containing carbon black can increase rubber strength. Examples of the carbon black to be used include HAF, ISAF, SAF, GPF, and FEF.
- the nitrogen adsorption specific surface area (N 2 SA) of the carbon black is preferably 25 m 2 /g or larger, and more preferably 30 m 2 /g or larger.
- An N 2 SA of the carbon black of smaller than 25 m 2 /g tends to decrease rubber reinforcement.
- the N 2 SA of the carbon black is preferably 280 m 2 /g or smaller, and more preferably 250 m 2 /g or smaller.
- An N 2 SA of the carbon black of larger than 280 m 2 /g may lead to a very high viscosity of the unvulcanized rubber, which tends to decrease processability or decrease fuel economy.
- the N 2 SA of the carbon black can be determined in accordance with the method A of JIS K6217-7.
- the rubber composition preferably contains 3 parts by mass or more, more preferably 4 parts by mass or more, and still more preferably 5 parts by mass or more of the carbon black per 100 parts by mass of the rubber component.
- a carbon black content of less than 3 parts by mass tends to decrease weather resistance and ozone resistance.
- the rubber composition preferably contains 20 parts by mass or less, more preferably 15 parts by mass or less, and still more preferably 10 parts by mass or less of the carbon black.
- a carbon black content of more than 20 parts by mass may increase the amount of petroleum-derived raw materials, thereby tending to be unfriendly to the environment.
- the rubber composition in the present invention can optionally contain additives generally used in the rubber industries, in addition to the above modified natural rubber, other rubbers in the rubber component, vulcanizing agents, vulcanization accelerators, silica, silane coupling agents, and carbon black.
- additives include zinc oxide, stearic acid, various age resistors, and waxes.
- the rubber composition in the present invention can be produced by a known method. That is, for example, the respective ingredients described above are mixed by a rubber kneader such as an open roll mill, a Banbury mixer, or an internal mixer, and are then vulcanized so that a rubber composition can be produced.
- a rubber kneader such as an open roll mill, a Banbury mixer, or an internal mixer
- the rubber composition in the present invention is applicable to a vehicle tire, and can improve fuel economy (rolling resistance), abrasion resistance, and also grip performance in a balanced manner.
- the above rubber composition is applicable to each of components of a tire. It is particularly suitable to use the rubber composition for a tread, a base tread, a sidewall, a clinch, a chafer, a ply, a band, and a breaker.
- the tire of the present invention can be produced using the above rubber composition by a common method. That is, an unvulcanized rubber composition with the respective additives optionally blended therein is extruded into the shape of each component of a tire. Next, the extruded rubber composition is built up in a usual manner on a tire building machine, so that an unvulcanized tire is formed. The unvulcanized tire is then heated and pressurized in a vulcanizer, and thereby a tire can be produced.
- the tire of the present invention is suitably applicable to particularly passenger vehicles, trucks, buses, and low emission vehicles (eco-friendly cars) coping to global environmental protection.
- a 5000-ml glass reaction vessel provided with a thermometer and a mechanical stirrer with a fluorocarbon resin blade was placed in a temperature controllable bath to provide a reactor.
- 100 parts by mass of natural rubber was dissolved in toluene, and this solution was then added with 2 parts by mass of an acid catalyst (p-toluenesulfonic acid) and 20 parts by mass of water.
- the solution was stirred vigorously for five hours at a reflux temperature thereof.
- the reaction solution was coagulated with methanol, and the coagulated rubber was washed in water and then vacuum-dried for six hours at 50°C to 60°C. Thereby, hydroxylated natural rubber "a" having a hydroxylation rate of 1% by mole was produced.
- Hydroxylated natural rubber "b” was produced by the same procedure as that for preparation of the hydroxylated natural rubber "a” in Preparation 1 except that the addition amounts of the acid catalyst and water were respectively changed to 10 parts by mass and 80 parts by mass.
- Hydroxylated natural rubber "c" was produced by the same procedure as that for preparation of the hydroxylated natural rubber "a” in Preparation 1 except that the addition amounts of the acid catalyst and water were respectively changed to 19 parts by mass and 100 parts by mass.
- Hydroxylated epoxidized natural rubber A was produced by the same procedure as that for preparation of the hydroxylated natural rubber "a" in Preparation 1 except that epoxidized natural rubber was used in place of the natural rubber.
- Hydroxylated epoxidized natural rubber B was produced by the same procedure as that for preparation of the hydroxylated epoxidized natural rubber A in Preparation 4 except that the addition amounts of the acid catalyst and water were respectively changed to 5 parts by mass and 80 parts by mass.
- Hydroxylated epoxidized natural rubber C was produced by the same procedure as that for preparation of the hydroxylated epoxidized natural rubber A in Preparation 4 except that the addition amounts of the acid catalyst and water were respectively changed to 10 parts by mass and 100 parts by mass.
- Tables 1 and 2 respectively show the hydroxylation rate of the prepared hydroxylated natural rubbers "a” to "c", and the hydroxylation rate and epoxidation rate of the hydroxylated epoxidized natural rubbers A to C.
- the loss tangent (tan ⁇ ) of each evaluation sample was determined with a viscoelasticity spectrometer produced by Iwamoto Seisakusho Co., Ltd. under the following conditions: a temperature of 70°C; an initial strain of 10%; a dynamic strain of 2%; and a frequency of 10 Hz.
- the determined loss tangent was used in the following calculation formula to calculate the rolling resistance index.
- Rolling resistance index ( Tan ⁇ of Comparative Example 1 / Tan ⁇ of each sample ) ⁇ 100
- the volume loss of each evaluation sample was determined with a Lambourn abrasion tester (produced by Iwamoto Seisakusho Co., Ltd.) under the conditions of a slip ratio of 20% and a test period of 5 minutes.
- the determined volume loss of each sample was used in the following calculation formula to calculate the abrasion test index.
- Abrasion test index ( ( Volume loss of Comparative Example 1 ) / Volume loss of each sample ) ⁇ 100
- the loss tangent (tan ⁇ ) of each evaluation sample was determined with a viscoelasticity spectrometer produced by Iwamoto Seisakusho Co., Ltd. under the following conditions: a temperature of 0°C; an initial strain of 10%; a dynamic strain of 0.5%; and a frequency of 10 Hz.
- the determined loss tangent was used in the following calculation formula to calculate the grip index.
- Table 3 shows that use of hydroxylated natural rubber in place of natural rubber led to balanced improvement of the fuel economy (rolling resistance index) and abrasion resistance.
- Tables 4 and 5 show that, even when the rubber composition contained a mix of natural rubber and one of SBR and BR, use of hydroxylated natural rubber in place of the natural rubber also led to balanced improvement of the fuel economy (rolling resistance index) and abrasion resistance.
- Table 6 shows that use of hydroxylated epoxidized natural rubber in place of epoxidized natural rubber led to balanced improvement of the fuel economy, abrasion resistance, and grip performance.
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Claims (5)
- Pneu produit à l'aide d'une composition de caoutchouc pour pneu, comprenant
un agent de vulcanisation, et
un composant caoutchouc contenant un caoutchouc naturel modifié qui a un groupe hydroxyle directement lié à une chaîne principale du caoutchouc naturel,
dans lequel le caoutchouc naturel modifié contient au moins l'un des motifs constitutifs représentés par les formules (1), (2), (3) et (4) suivantes :
où la teneur en groupes hydroxyle dans le caoutchouc naturel modifié est de 1 à 20 % en moles sur la base des motifs isoprène comme déterminé dans la description. - Pneu selon la revendication 1,
dans lequel le caoutchouc naturel modifié contient en outre un groupe époxy. - Pneu selon l'une quelconque des revendications 1 à 3,
dans lequel la composition de caoutchouc contient 20 % en poids ou plus de caoutchouc naturel modifié pour 100 % en poids de composant caoutchouc. - Pneu selon l'une quelconque des revendications 1 à 4, dans lequel la composition de caoutchouc contient en outre de 10 à 100 parties en poids de silice pour 100 parties en poids de composant caoutchouc.
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JP2008256753 | 2008-10-01 | ||
JP2009214550A JP5225240B2 (ja) | 2008-10-01 | 2009-09-16 | タイヤ用ゴム組成物及びタイヤ |
PCT/JP2009/067055 WO2010038790A1 (fr) | 2008-10-01 | 2009-09-30 | Composition de caoutchouc pour pneu et pneu |
Publications (3)
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EP2341101A1 EP2341101A1 (fr) | 2011-07-06 |
EP2341101A4 EP2341101A4 (fr) | 2012-09-26 |
EP2341101B1 true EP2341101B1 (fr) | 2018-11-07 |
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EP09817822.1A Active EP2341101B1 (fr) | 2008-10-01 | 2009-09-30 | Composition de caoutchouc pour pneu et pneu |
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EP (1) | EP2341101B1 (fr) |
JP (1) | JP5225240B2 (fr) |
CN (1) | CN102149766B (fr) |
WO (1) | WO2010038790A1 (fr) |
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US8354419B2 (en) | 2009-07-16 | 2013-01-15 | Vertex Pharmaceuticals Incorporated | Benzimidazole analogues for the treatment or prevention of flavivirus infections |
EP2550267A1 (fr) | 2010-03-24 | 2013-01-30 | Vertex Pharmaceuticals Incorporated | Analogues pour traiter ou prévenir les infections à flavivirus |
JP5752501B2 (ja) * | 2011-06-29 | 2015-07-22 | 東洋ゴム工業株式会社 | ゴム組成物及びそれを用いた空気入りタイヤ |
CN104903356B (zh) | 2013-01-09 | 2017-04-26 | 东洋橡胶工业株式会社 | 改性二烯类聚合物及其制造方法、以及橡胶组合物及充气轮胎 |
JP6492989B2 (ja) * | 2015-06-08 | 2019-04-03 | 横浜ゴム株式会社 | タイヤ用ゴム組成物およびそれを用いた空気入りタイヤ |
EP4201699A1 (fr) * | 2020-10-16 | 2023-06-28 | Sumitomo Rubber Industries, Ltd. | Pneu |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
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CA1116344A (fr) * | 1976-06-02 | 1982-01-12 | William J. Schultz | Polymeres contenant des segments de 2,5-oxolanylene |
GB2113692B (en) | 1981-12-18 | 1985-06-26 | Malaysian Rubber Producers | Epoxidized cis 1, 4-polyisoprene rubber |
GB8817391D0 (en) | 1988-07-21 | 1988-08-24 | Malaysia Rubber Res Inst | Adhesive compositions |
JPH03239739A (ja) * | 1990-02-15 | 1991-10-25 | Yokohama Rubber Co Ltd:The | ゴム組成物 |
JP3301637B2 (ja) * | 1992-09-18 | 2002-07-15 | 株式会社クラレ | ゴム組成物 |
JP3363539B2 (ja) * | 1993-09-20 | 2003-01-08 | 横浜ゴム株式会社 | タイヤトレッド用ゴム組成物 |
JP4204856B2 (ja) * | 2002-12-04 | 2009-01-07 | 住友ゴム工業株式会社 | タイヤトレッド用ゴム組成物およびそれを用いた空気入りタイヤ |
JP4401651B2 (ja) * | 2002-12-18 | 2010-01-20 | 東レ・ダウコーニング株式会社 | タイヤトレッド用ゴム組成物 |
JP4076911B2 (ja) * | 2003-06-03 | 2008-04-16 | 住友ゴム工業株式会社 | トレッド用ゴム組成物およびそれを用いた空気入りタイヤ |
JP4361322B2 (ja) * | 2003-07-25 | 2009-11-11 | 住友ゴム工業株式会社 | タイヤトレッド用ゴム組成物およびそれを用いた空気入りタイヤ |
DE602004001807T2 (de) * | 2003-06-03 | 2007-08-02 | Sumitomo Rubber Industries Ltd., Kobe | Gummizusammensetzung für Reifenlaufflächen und peneumatischer Reifen auf der Basis derselben |
JP4429050B2 (ja) * | 2004-03-16 | 2010-03-10 | 住友ゴム工業株式会社 | タイヤ用ゴム組成物およびこれを用いたタイヤ |
JP2005281621A (ja) * | 2004-03-30 | 2005-10-13 | Toyo Tire & Rubber Co Ltd | 空気入りタイヤ用ゴム組成物及び空気入りタイヤ |
JP2006124504A (ja) * | 2004-10-28 | 2006-05-18 | Sumitomo Rubber Ind Ltd | タイヤ用ゴム組成物およびそれを用いた空気入りタイヤ |
JP4787502B2 (ja) * | 2005-01-07 | 2011-10-05 | 株式会社ブリヂストン | パンクシーリング剤 |
JP4805584B2 (ja) | 2005-01-21 | 2011-11-02 | 住友ゴム工業株式会社 | トレッド用ゴム組成物およびそれからなるタイヤ |
JP2007039585A (ja) * | 2005-08-04 | 2007-02-15 | Sumitomo Rubber Ind Ltd | ゴム組成物およびこれを用いた空気入りタイヤ |
JP5085873B2 (ja) | 2006-03-16 | 2012-11-28 | 住友ゴム工業株式会社 | トレッド用ゴム組成物 |
JP5078317B2 (ja) * | 2006-08-04 | 2012-11-21 | 住友ゴム工業株式会社 | ゴム組成物およびこれを用いた空気入りタイヤ |
JP2008189846A (ja) * | 2007-02-06 | 2008-08-21 | Toyo Tire & Rubber Co Ltd | タイヤトレッド用ゴム組成物 |
JP2009173727A (ja) * | 2008-01-23 | 2009-08-06 | Toyota Motor Corp | 改質ゴム及びその製造方法 |
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- 2009-09-16 JP JP2009214550A patent/JP5225240B2/ja active Active
- 2009-09-30 CN CN2009801359377A patent/CN102149766B/zh active Active
- 2009-09-30 WO PCT/JP2009/067055 patent/WO2010038790A1/fr active Application Filing
- 2009-09-30 EP EP09817822.1A patent/EP2341101B1/fr active Active
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GELLING I R: "Modification of Natural Rubber Latex with Peracetic Acid", RUBBER CHEMISTRY AND TECHNOLOGY, AMERICAN CHEMICAL SOCIETY, RUBBER DIVISION, US, vol. 58, 1 January 1985 (1985-01-01), pages 86 - 96, XP008162724, ISSN: 0035-9475 * |
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Also Published As
Publication number | Publication date |
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WO2010038790A1 (fr) | 2010-04-08 |
CN102149766B (zh) | 2013-04-24 |
EP2341101A4 (fr) | 2012-09-26 |
JP2010106250A (ja) | 2010-05-13 |
JP5225240B2 (ja) | 2013-07-03 |
EP2341101A1 (fr) | 2011-07-06 |
CN102149766A (zh) | 2011-08-10 |
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